r/Naturewasmetal 6d ago

Barinasuchus arveloi: El titán del sur de la era de los mamíferos.

Barinasuchus arveloi fue un cocodriliforme terrestre que habitó América del Sur y es considerado uno de los mayores depredadores terrestres del Cenozoico, con estimaciones que oscilan entre los 6 y 8 metros de longitud y cerca de 2 toneladas de peso. Este formidable cazador dominaba los ecosistemas donde convivía con notoungulados y xenartros, evocando los antiguos tiempos en que gigantescos pseudosuquios gobernaban el Triásico sudamericano, depredando sinápsidos y otros saurópsidos de aquella época.

Como miembro de los sebécidos, Barinasuchus representó uno de los muchos linajes de arcosaurios que lograron prosperar en una era dominada principalmente por mamíferos terrestres. Su anatomía robusta, adaptada a la vida completamente terrestre, lo convirtió en un superdepredador capaz de ocupar la cima de la cadena alimenticia junto a otros grandes cazadores de la época, como las aves del terror y diversos marsupialiformes carnívoros, con los cuales compartía el mismo nicho ecológico.

188 Upvotes

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u/Ex_Snagem_Wes 6d ago

The whole "biggest thing around" is true, but its not by as large as people make it out to be

Modern reconstructions off Sebecus and other Sebecids yield a much more constrained 5 - 5.5m and 1000kg, a far cry from the 2000kg, 8m long monster it was originally claimed to be

South America was also home to some quite large Sparassodonts, with Proborhyaena in particularly reaching a ballpark of 500kg. Still a lot smaller, but its not like Barina was 6× the size of contemporary predators like I've seen people say.

Big credits to Purussaurus, which also lived in South America and somehow managed the feat of being the largest Pseudosuchian of all time.

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u/Iamnotburgerking 5d ago

That’s still the largest land hypercarnivore of the Cenozoic by a fair margin.

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u/Ex_Snagem_Wes 5d ago

Not really. Megistotherium is in the same size range, potentially larger, Agriotherium isn't much smaller either (about 800kg or so), and Amphicyon ingens is nearly hypercarnivorous

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u/Iamnotburgerking 5d ago

Megistotherium being larger is contingent on those fragmentary remains actually belonging to it: the more definitive specimens indicate a size comparable to the biggest male polar bears, which is still huge for a mammalian land hypercarnivore (enough to make it a contender for that title) but smaller than Barina.

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u/Ex_Snagem_Wes 5d ago

Sorry for the comment duplicate, reddit started bugging lmfao

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u/Ex_Snagem_Wes 5d ago edited 5d ago

Megistotherium is about 870kg for the smallest specimen in a shrinkwrapped GDI

If there is more than 1 specimen actually valid, its outweighing Barina

Amphicyon is also near/potentially Hypercarnivorous and reached sizes larger than Barinasuchus, so it should definitely be acknowledged

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u/Freak_Among_Men_II 5d ago

I would’ve thought that Barinasuchus had a drooping tail like extant crocodylomorphs. Is there any evidence in their fossil remains to suggest they held their tails erect like theropod dinosaurs, instead of their closest modern relatives?

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u/No-Possession-6176 5d ago

No hay evidencia aun de esa parte del cuerpo, solo podemos inferir como era su anatomía, con restos mejor conservados de sus parientes como Campinasuchus, Baurusuchus o Kostensuchus.

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u/FancyPenguin32 2d ago

Dwarf-Dragons lol